|
|
A USB device recognizes a SUSPEND request as three milliseconds of the bus-idle (“J”) state.
When the FX2 detects this condition, it asserts the USB interrupt (INT2) and the SUSPEND interrupt autovector (vector #3).
И ниже сноска !!!!!
The bus-idle (“J”) state is not equivalent to the disconnected-from-USB state; the “J” state means that the voltage on D+ is higher than that on D-.
|
|
E-mail: 
info@telesys.ru
